Improvement in hose-couplings



@gait-rn tang @anni ffficr.

Mo'sELEY s. CURTIS. or New YORK, N. Y.

Letters Patent No. 69,778, dated October 15, 1867.

IMPROVEMENT IN HOSE-COUPLINGS.

'ro ALL wHoM rr MAY coNoERN:

Be it known that I, MOSELEY S.v CURTIS, of the city,l county, and State oi'.New York, have invented a new and improved Hose-Coupling; and I do hereby declare that the following is afull, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming a part of this specification, in which- Figure-1 is a longitudinal section of'iny improved hose-coupling.

Figure-2 is a cross-section of the saule taken through the line 2z: x, fig. 1.

Figure 3 isa longitudinal section illustrating a modification of the saine.

Figure 4 is across-section taken through the line y y, iig.

My invention consists in securing the parts of the coupling to each other by sliding blocks, and in operating said blocks by means of eccentric grooves formed in a movable part of the coupling; the whole being constructed and arranged as hereinafter more fully described.

A and B are the main parts of the conpling,tl1e outer ends of which are corrugated in the usual manner to facilitate the'attaehmcnt of the sections of hose. The inner end ofthe part A has a flange, a', formed around it, and the said inner end is countersunk for the reception oi' the inner end of the part B, as shown in iig. 1. The outer surface ofthe inner end of the part B is grooved or channelled in such a Way that the lower edge of the said chamber b` may be inclined,.as shown in iig. 1. C are blocks, which slide in and out in grooves or 4channels formed inv the flange a', and through the sides of the part A, as shown in the drawings. The inner ends of the blocks vC are'inclined t'o correspond with the inclination of the loweredge of the channel b. D is a ring, iittng down upon th'e'angc a', and moving freely back and forth around the inner part of the part A. In the lower surface ofthe ring D are formed two eccentric slots d', into which enter the tongues or projections c', formcdupon the upper sides of the blocks C, as shown in figs. 1 and 2; so'that'by turning the ring or nmovable part D in one or the other direction, the blocks C may be moved ihward to clamp the two parts'A and B of the coupling together by the inclined ends of the blocks C coming in contact with the inclined sides of the channel b', as shown in lg, 1. And by turning the movable part D in the other direction, the blocks C will be withdrawn, unconpling the parts A and B, The part or ring D is secured in place by the ring or part E, which ts around the upperend of the part A, and upon the upper side of the part or Vring D, and Ywhich is secured to the p'art A by screws passing through the sides ofthe part A, and screwing into the part E, as shown in dotted lines in iig. 1, or in amy other convenient manner. If desired, the rings D and E may be made in one piece, as shown in iig. 3, and secured in place by an open ring. In this case a groove or channel is formed around the upper part ofthe part A, just above the blocks C, into which is sprung an open ring, having a.s.erew-thread cut upon its outer surface. The movable part D E has a corresponding thread cut upon the lower part of its inner f surface. The part D E is then screwed down upon the openring, to which it is keyed by a pin or pins passing down through the part D E in suche position as to pass through the screw-threads of the said part, and through thc threads of the open ring, securing them to each other and to the part A, and yet allowing them to be free to move to operate the blocks C.

Having thus described my invention, what claim as new, and desire to secure by Letters Patent, is-

1. Securing the parts A and B of the coupling to each other by mea-ns of the sliding blocks C, substantially as herein shown and described.

2. Operating the sliding blocks C by means of eccentric grooves formed in the movable part D of the coupling, substantially es herein shown and described.

The above specification of my invention signed by me this 8th day of December, 1866.

MOSELEY S. CURTIS.

Witnesses-z WM. F. McNAMAnA, JAMES T. GRAHAM. 

